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Service Providers >> TooWay and KA-SAT satellite >> Re: Skyware KA equipment. https://www.satsig.net/cgi-bin/yabb/YaBB.pl?num=1294319121 Message started by Eric Johnston on Jan 6th, 2011 at 5:12pm |
Title: Re: Skyware KA equipment. Post by Eric Johnston on Jan 6th, 2011 at 5:12pm
XRC33F16CD, 3 Watt Ka-band VSAT Transceiver
TX: Input 950-1450 MHz Output: 29.5 - 30 GHz. PLL LO=28.55 GHz needs 10 MHz external reference. DC power 15 - 50V. Typical 1A at 24V RX: Input 19.2 - 20.2 GHz. Output 950 - 1950 MHz. PLL LO=18.25 GHz +/-25ppm. DC power 9 - 25 V, typical 200 mA Integrated OMT and transmit reject filter. Cross polarised and linear polarised. Needs external polariser for circular polarisation operation. I am pleased to see it confirmed that KA-SAT will use circular polarisation. This will eliminate the need for polarisation adjustment at installation and make life a lot easier, particularly for self-installers. The polariser is attached to the tx/rx module such that the polariser is at +/-45 deg to the linear polarisations of the tx/rx module. There are two alternative 45 deg positions. One for RHCPup/LHCPdown and one for LHCPup/RHCPdown. Two pictures you show illustrate the two alternative ways of assembly. Do you know if all beams on KA-SAT use the same polarisation ? Best regards, Eric. |
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